Telocytes (TCs) are a kind of interstitial cells recently identified,which distribute in the heart,lung,liver,kidney,brain and some other organs.These cells are characterized by a small cell body and extremely long and thin telopodes (Tp).The TPs arranged in moniliform aspect with alternation of thin segments and small dilations,forming a complex 3D network with the surrounding cells.More and more researches show that TPs have a role in injured tissue repairement directly or indirectly.This review focus on its function of tissue repair and the possible mechanism.

Objective To study the chemical constituents of the acid hydrolytic products from the stems and leaves of Panax quinquefolium. Methods The stems and leaves of P. quinquefolium were hydrolyzed with acid;Isolation and purification were carried out by various chromatographic techniques,such as silica gel and so on. Compounds were identified and elucidated by spectral and chemical methods. Results Eight compounds were obtained from the acid hydrolytic products in the stems and leaves of P. quinquefolium and identified as 20 (S)-panaxadiol (Ⅰ),20 (S)-protopanaxadiol (Ⅱ),20 (R)-protopanaxadiol (Ⅲ),20 (S)-panaxatriol (Ⅳ),24 (R)-ocotillol (Ⅴ),20 (R)-protopanaxatriol (Ⅵ),20 (R)-dammarane-3?,12?,20,25-tetrol (Ⅶ),and 20 (R)-dammarane-3?,6?,12?,20,25-pentol (Ⅷ). Conclusion Compounds Ⅰ-Ⅷ are the derivates of the aglycones of ginsenosides,isolated from the acid hydrolytic products from the stems and leaves of P. quinquefolium for the first time. Among these compounds,Ⅳ,Ⅶ,and Ⅷ are discoverd from the roots,stems,leaves,fruits,and buds of P. quinquefolium for the first time. Compound Ⅶ is discovered and reported that it is the derivate of the aglycone of protopanoxadiol ginsenoside,with the conspicuous anticancer activity from the fruits of P. ginseng for the first time.

Objective: To study the influence of PSD (post-stroke depression) on early restore Method: 67 patients with acute stroke were evaluated with HAMD and NFA (neurological function assessment) They were followed for 6 months after discharge Results:The rate of PSD was 37%, most in mild to moderate levels Patients with PSD stayed longer in hospital than those without In follow up, patients with PSD had poor outcome in NFA Conclusion: PSD has negative influence on restore of stroke

Objective To prepare a radiofrequency (RF) ablation probe guided by endoscopic ultrasonography (EUS) and to evaluate its efficacy and safety. Methods A modified 19-gauge needle ( Olympus) was used, which was electrically insulated with shrink tubing, with the tip of lcm naked. The insulation was tested, and the current signal was stable. Three rabbits were anesthetized with 8% chloral hydrate ( 3 ml/kg) intraperitoneally, fixed on the dissecting table. A standard neutral pad was applied to the thigh of the rabbit to complete the electrical circuit, both the pad and the needle electrode connected with RF generator. After anesthesia was ready, the needle was advanced through the gastric wall into the liver. Ablations were performed three times in the same zone. Extent and tissue lesion were measured after ablation. Results Ablation could be successfully performed by the needle electrode, with brown lesions surrounded by normal hepatic tissue. The mean diameter of the ablated zone in the liver was 1.0 cm× 1.2 cm. After ablation,specimens along the passage were subjected to NADH staining, and no lesions were found. HE and NADH staining showed no viable cells in the central ablation area. Conclusion With the advance of the technology and selection of materials, an EUS-guided needle electrode can be made. This preliminary animal trial demonstrates that radiofrequency ablation can be performed effectively and safely by using this EUS-guided needle electrode.

Objective To discuss the impact of the pattern of student-autonomous laboratories opening on the experimental teaching of rehabilitation specialty. Methods Laboratories were opened to sophomore students of rehabilitation specialty. Planned opening pattern is employed on students of 2009 class and autonomous opening pattern is used on students of 2010 class. At the end of each term, results of these opening patterns are compared. Results The total opening hours of planned opening pattern were 89 with 755 person-times involved. The accumulated opening hours of autonomous opening pattern were 323 with 2677 person-times involved. Students of the autonomous opening pattern class achieved better academic results than students of planned opening pattern (P<0.05) in 7 major courses. Opening laboratories to students contributed to the improvement of rehabilitation skills, better understanding of the curricular knowledge, the enhancement of problem-analyzing and problem solving abilities, the stimulation of interest in major study and also the fostering of teamwork spirit. And the autonomous opening pattern achieved more desirable results (P<0.05). Conclusion The student-autonomous lab opening pattern contributes more to the improvement of students' practical skills, innovative spirit as well as comprehensive clinical rehabilitation abilities.

Objective To investigate the distribution and antibiotic resistance of the K lebsiella pneumoniae strains isolated from clinical infections in terms of serotypes K1 ,K2 and virulence factor rmpA gene .Methods The hypermucoviscous phenotype of K .pneumoniae isolate was determined by string test .K1 and K2 serotypes and rmpA gene were detected using multiplex polymerase chain reaction .Results Of the 144 strains of K .pneumoniae ,the prevalence of hypermucoviscous phenotype ,K1 , K2 serotypes and rmpA gene was 62 .5% (90/144) ,52 .1% (75/144) and 65 .3% (94/144) ,respectively .The prevalence of K1 ,K2 and rmpA K .pneumoniae strains was 90 .7% (68/75) in K1 ,K2 serotypes .The prevalence of K1 ,K2 isolates and rmpA in hypermucoviscous or non‐hypermucoviscous phenoype was 63 .3% (57/90) ,85 .6% (77/90) and 33 .3% (18/54) , 31 .5% (17/54) ,respectively .The prevalence of serotype K1 ,K2 with or without rmpA gene was 72 .3% (68/94) and 14 .0% (7/50 ) respectively . Of the 42 K . pneumoniae strains isolated from liver abscess ,85 .7% (36/42) were hypermucoviscous phenotype and 88 .1% (37/42 ) were serotypes K1 , K2 . For the strains from other abscess , bacteremia ,community acquried pneumonia (CAP) ,urinary tract infection (UTI) and biliary tract infection ,the prevalence of hypermucoviscous phenotype was 81 .3% (13/16) ,40 .5%(15/37) ,85 .7% (12/14) ,52 .4% (11/21) and 21 .4% (3/14) ,respectively ,and the prevalence of serotypes K1 ,K2 was 56 .3% (9/16) ,29 .7% (11/37) ,64 .3% (9/14) ,38 .1% (8/21) and 7 .1% (1/14) ,respectively .K1 serotype isolate accounted for 61 .9% of the strains from liver abscess .The ratio between serotype K1 and K2 was similar in the isolates from other abscess ,CAP ,UTI or bacteremia .Non‐K1 ,K2 serotype isolates were common in biliary tract infection .The prevalence of extended‐spectrum beta‐lactamases (ESBLs ) was 5 .5% in hypermucoviscous phenotypes and 33 .3% in the non‐hypermucoviscous phenotypes .Conclusions rmpA gene is associated with the hypermucoviscous phenotype of K .pneumoniae strains and commonly identified in K1 ,K2 serotype isolates .Serotypes K1 ,K2 isolates are important pathogens in liver abscess and CAP ,and also common in other abscess ,UTI and bacteremia .K1 serotype isolate was most common in liver abscess .The prevalence of K1 or K2 serotype was similar in other infections . The prevalence of ESBLs is lower in hypermucoviscous strains than in non‐hypermucoviscous strains and is associated with lower resistance rate to most of the antibiotics tested .

Objective To investigate the relation of pelvic three-dimensional conformal radiotherapy(3D-CRT) target with rectal dose distribution and irradiation volume in cervical cancer.Methods In 45 patients with cervical cancer(Ⅱa-Ⅲb) treated in our department from September to December 2006,we compared rectal dose distribution in different treatment plans: conventional radiation,4-field box radiation,4-field oblique radiation and 5-field radiation,and studied the relationship between rectal irradiation volume and dose in the target area.Results Compared with that of the other models,the dose distribution of CTV in 3D-CRT was relatively poor although it could satisfy the demand of treatment;dose distribution of D90,D80 and D50 in the radiated rectum differed significantly(P

Objective To improve the level of CT in diagnosing LDH and to provide the proof for selecting method of clinical treatment in lumbar disc herniation (LDH). Methods 218 cases of LDH showed by CT and operative exploration were analysed retrospectively.Results The accurate rats of CT diagnosis of LDH were 95.4%. According to CT findings it may be divided into 5 types: Ⅰ was central type, Ⅱ was postero-lateral type, Ⅲ was forminal type, Ⅳ was extreme lateral type, was nucleus pulposus type. Conclusion CT plays an important role in diagnosis and selecting methods of clinical treatment of LDH; It is signficance to enhance the accurate rats of CT diagnosis and the effect of treatment by distinguish nucleus pulposus and fibrous scar tissue from CT finding of LDH.

Objective To observe and evaluate the effects of metformin and pioglitazone on blood glucose,insulin,glucagon,β-cell function and insulin resistance among patients with diabetes and metabolic syndrome,so as to discuss the role of pancreatic α cells in pathogenesis of type 2 diabetes mainly caused by insulin resistance and the change of α-cell function after treatment.Methods A total of 60 patients diagnosed with diabetes and metabolic syndrome were selected in Beijing Chaoyang District Diabetes Center from April 2012 to April 2013 and divided with random number table into metformin group (treated with metformin 0.5 g orally thrice a day for 1 year,n =30) and pioglitazone group (treated with pioglitazone 15 mg orally once a day for 1 year,n =30).30 normal healthy people who had physical examination at the Center during the same period were enrolled into the control group,matched in age and gender with the intervention groups.The general condition of the 3 groups,and blood levels of glucose,insulin,and glucagon,insulin sensitivity index (ISI)-Matsuda,homeostasis model assessment of insulin resistance (HOMA-IR),β-cell function index (HOMA-β),1-phase index,2-phase index,and insulin secretion sensitivity index (ISSI) at baseline in the 3 groups and after treatment in the metformin group and the pioglitazone group were measured and calculated.Results Compared with the control group before treatment,the intervention groups as a whole had significantly higher fasting glucagon level [(146.22 ±25.41) pmol/L vs.(21.31 ±7.85) pmol/L,P =0.002] and area under curve (AUC) of glucagon [(469.84 ±13.12) pmol/(L · h) vs.(100.94 ± 7.73) pmol/(L · h),P =0.006].Compared with the results before treatment,the metformin group exhibited significantly reduced fasting glucose [(6.46 ± 1.38) mmol/L vs.(7.54 ± 0.43) mmol/L,P=0.031],fasting insulin [(119.22 ± 69.01) pmol/L vs.(139.38 ±71.13) pmol/L,P =0.042],fasting glucagon [(91.69 ±22.11) pmol/L vs.(142.81 ±24.56) pmol/L,P=0.029],AUC of glucose [(25.19 ± 1.31) mmol/ (L · h) vs.(32.68 ± 1.12) mmol/ (L · h),P =0.043],AUC of insulin [(468.65 ±20.10) pmol/ (L· h) vs.(786.32±21.37) pmol/ (L· h),P=0.017],and AUC of glucagon [(280.60±8.26) pmol/ (L · h) vs.(487.14±14.31) pmol/ (L · h),P=0.032];while the pioglitazone group after treatment also showed significantly decreased fasting glucose [(6.58 ±2.21) mmol/L vs.(7.68±0.59) mmol/L,P=0.028],fastinginsulin [(107.92±17.81) pmol/L vs.(144.66±74.43) pmol/L,P =0.033],fasting glucagon [(76.07 ±20.57) pmol/L vs.(148.34 ±28.94) pmol/L,P=0.025],AUC of glucose [(25.58 ±1.22) mmol/(L·h) vs.(35.07 ±1.38) mmol/(L· h),P=0.038],AUC of insulin [(435.54±19.30) pmol/ (L· h) vs.(854.75 ±20.61) pmol/(L·h),P=0.013],andAUCofglucagon [(223.43 ±5.83) pmol/ (L·h) vs.(458.55 ±12.96) pmol/ (L·h),P =0.026].The before-after-treatment differences were significantly smaller in the metformin group than in the pioglitazone group in terms of fasting insulin [(20.16 ± 2.98) mmol/L vs.(36.74 ± 2.88) mmol/L,P =0.011],fasting glucagon [(51.12 ± 3.67) pmol/L vs.(72.27 ± 4.58) pmol/L,P =0.016],AUC of insulin [(317.67 ±13.45) pmol/(L · h) vs.(419.21 ±15.44) pmol/(L · h),P=0.031] and AUC of glucagon [(206.54±9.66) pmol/(L· h) vs.(235.12±10.29) pmol/(L· h),P=0.046].Conclusions Glucagon in patients with diabetes and metabolic syndrome is higher than that in normal individuals.Metformin and pioglitazone can decrease the level of glucagon in patients with metabolic syndrome and diabetes as well as improve the glucose control,β-cell function and insulin resistance,suggesting improving effect of these two drugs on α-cell function.Pioglitazone manifests a stronger effect than metformin does.